A constant current of is passed for through two electrolytic cells connected in series
CHEMISTRY · Multi-part · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
A constant current of 2.50A is passed for 30.0min through two electrolytic cells connected in series. One cell contains CuSO4(aq) and produces copper metal at its cathode. The second cell contains Al(NO3)3(aq) and produces aluminum metal at its cathode. Assume 100 % current efficiency and that no side reactions occur.
(a) Calculate the number of moles of electrons that pass through the circuit during the 30.0min interval.
(b) Determine the mass of copper deposited on the cathode of the copper cell.
(c) Determine the mass of aluminum deposited on the cathode of the aluminum cell.